本文整理了Java中net.lingala.zip4j.core.ZipFile.readZipInfo()方法的一些代码示例，展示了ZipFile.readZipInfo()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。ZipFile.readZipInfo()方法的具体详情如下：
包路径：net.lingala.zip4j.core.ZipFile
类名称：ZipFile
方法名：readZipInfo
[英]Reads the zip header information for this zip file. If the zip file does not exist, then this method throws an exception.
Note: This method does not read local file header information
[中]读取此zip文件的zip头信息。如果zip文件不存在，则此方法引发异常。
注意：此方法不读取本地文件头信息
代码示例来源：origin: net.lingala.zip4j/zip4j
/**
* Checks to see if the input zip file is a valid zip file. This method
* will try to read zip headers. If headers are read successfully, this
* method returns true else false
* @return boolean
* @since 1.2.3
*/
public boolean isValidZipFile() {
try {
readZipInfo();
return true;
} catch (Exception e) {
return false;
}
}代码示例来源：origin: com.github.axet/zip4j
/**
* Checks to see if the input zip file is a valid zip file. This method
* will try to read zip headers. If headers are read successfully, this
* method returns true else false
* @return boolean
* @since 1.2.3
*/
public boolean isValidZipFile() {
try {
readZipInfo();
return true;
} catch (Exception e) {
return false;
}
}代码示例来源：origin: net.lingala.zip4j/zip4j
/**
* Loads the zip model if zip model is null and if zip file exists.
* @throws ZipException
*/
private void checkZipModel() throws ZipException {
if (this.zipModel == null) {
if (Zip4jUtil.checkFileExists(file)) {
readZipInfo();
} else {
createNewZipModel();
}
}
}代码示例来源：origin: com.github.axet/zip4j
/**
* Loads the zip model if zip model is null and if zip file exists.
* @throws ZipException
*/
private void checkZipModel() throws ZipException {
if (this.zipModel == null) {
if (Zip4jUtil.checkFileExists(file)) {
readZipInfo();
} else {
createNewZipModel();
}
}
}代码示例来源：origin: net.lingala.zip4j/zip4j
/**
* Checks if the zip file is a split archive
* @return true if split archive, false if not
* @throws ZipException
*/
public boolean isSplitArchive() throws ZipException {
if (zipModel == null) {
readZipInfo();
if (zipModel == null) {
throw new ZipException("Zip Model is null");
}
}
return zipModel.isSplitArchive();
}代码示例来源：origin: com.github.axet/zip4j
/**
* Checks if the zip file is a split archive
* @return true if split archive, false if not
* @throws ZipException
*/
public boolean isSplitArchive() throws ZipException {
if (zipModel == null) {
readZipInfo();
if (zipModel == null) {
throw new ZipException("Zip Model is null");
}
}
return zipModel.isSplitArchive();
}代码示例来源：origin: net.lingala.zip4j/zip4j
/**
* Returns the list of file headers in the zip file. Throws an exception if the
* zip file does not exist
* @return list of file headers
* @throws ZipException
*/
public List getFileHeaders() throws ZipException {
readZipInfo();
if (zipModel == null || zipModel.getCentralDirectory() == null) {
return null;
}
return zipModel.getCentralDirectory().getFileHeaders();
}代码示例来源：origin: com.github.axet/zip4j
/**
* Returns the list of file headers in the zip file. Throws an exception if the
* zip file does not exist
* @return list of file headers
* @throws ZipException
*/
public List getFileHeaders() throws ZipException {
readZipInfo();
if (zipModel == null || zipModel.getCentralDirectory() == null) {
return null;
}
return zipModel.getCentralDirectory().getFileHeaders();
}代码示例来源：origin: net.lingala.zip4j/zip4j
/**
* Returns FileHeader if a file header with the given fileHeader
* string exists in the zip model: If not returns null
* @param fileName
* @return FileHeader
* @throws ZipException
*/
public FileHeader getFileHeader(String fileName) throws ZipException {
if (!Zip4jUtil.isStringNotNullAndNotEmpty(fileName)) {
throw new ZipException("input file name is emtpy or null, cannot get FileHeader");
}
readZipInfo();
if (zipModel == null || zipModel.getCentralDirectory() == null) {
return null;
}
return Zip4jUtil.getFileHeader(zipModel, fileName);
}代码示例来源：origin: com.github.axet/zip4j
/**
* Returns FileHeader if a file header with the given fileHeader
* string exists in the zip model: If not returns null
* @param fileName
* @return FileHeader
* @throws ZipException
*/
public FileHeader getFileHeader(String fileName) throws ZipException {
if (!Zip4jUtil.isStringNotNullAndNotEmpty(fileName)) {
throw new ZipException("input file name is emtpy or null, cannot get FileHeader");
}
readZipInfo();
if (zipModel == null || zipModel.getCentralDirectory() == null) {
return null;
}
return Zip4jUtil.getFileHeader(zipModel, fileName);
}代码示例来源：origin: net.lingala.zip4j/zip4j
readZipInfo();
if (zipModel == null) {
throw new ZipException("Zip Model is null");代码示例来源：origin: net.lingala.zip4j/zip4j
/**
* Sets the password for the zip file
* @param password
* @throws ZipException
*/
public void setPassword(char[] password) throws ZipException {
if (zipModel == null) {
readZipInfo();
if (zipModel == null) {
throw new ZipException("Zip Model is null");
}
}
if (zipModel.getCentralDirectory() == null || zipModel.getCentralDirectory().getFileHeaders() == null) {
throw new ZipException("invalid zip file");
}
for (int i = 0; i < zipModel.getCentralDirectory().getFileHeaders().size(); i++) {
if (zipModel.getCentralDirectory().getFileHeaders().get(i) != null) {
if (((FileHeader)zipModel.getCentralDirectory().getFileHeaders().get(i)).isEncrypted()) {
((FileHeader)zipModel.getCentralDirectory().getFileHeaders().get(i)).setPassword(password);
}
}
}
}代码示例来源：origin: com.github.axet/zip4j
/**
* Sets the password for the zip file
* @param password
* @throws ZipException
*/
public void setPassword(char[] password) throws ZipException {
if (zipModel == null) {
readZipInfo();
if (zipModel == null) {
throw new ZipException("Zip Model is null");
}
}
if (zipModel.getCentralDirectory() == null || zipModel.getCentralDirectory().getFileHeaders() == null) {
throw new ZipException("invalid zip file");
}
for (int i = 0; i < zipModel.getCentralDirectory().getFileHeaders().size(); i++) {
if (zipModel.getCentralDirectory().getFileHeaders().get(i) != null) {
if (((FileHeader)zipModel.getCentralDirectory().getFileHeaders().get(i)).isEncrypted()) {
((FileHeader)zipModel.getCentralDirectory().getFileHeaders().get(i)).setPassword(password);
}
}
}
}代码示例来源：origin: net.lingala.zip4j/zip4j
/**
* Extracts a specific file from the zip file to the destination path.
* If destination path is invalid, then this method throws an exception.
* @param fileHeader
* @param destPath
* @param unzipParameters
* @param newFileName
* @throws ZipException
*/
public void extractFile(FileHeader fileHeader, String destPath,
UnzipParameters unzipParameters, String newFileName) throws ZipException {
if (fileHeader == null) {
throw new ZipException("input file header is null, cannot extract file");
}
if (!Zip4jUtil.isStringNotNullAndNotEmpty(destPath)) {
throw new ZipException("destination path is empty or null, cannot extract file");
}
readZipInfo();
if (progressMonitor.getState() == ProgressMonitor.STATE_BUSY) {
throw new ZipException("invalid operation - Zip4j is in busy state");
}
fileHeader.extractFile(zipModel, destPath, unzipParameters, newFileName, progressMonitor, runInThread);
}代码示例来源：origin: com.github.axet/zip4j
/**
* Extracts a specific file from the zip file to the destination path.
* If destination path is invalid, then this method throws an exception.
* @param fileHeader
* @param destPath
* @param unzipParameters
* @param newFileName
* @throws ZipException
*/
public void extractFile(FileHeader fileHeader, String destPath,
UnzipParameters unzipParameters, String newFileName) throws ZipException {
if (fileHeader == null) {
throw new ZipException("input file header is null, cannot extract file");
}
if (!Zip4jUtil.isStringNotNullAndNotEmpty(destPath)) {
throw new ZipException("destination path is empty or null, cannot extract file");
}
readZipInfo();
if (progressMonitor.getState() == ProgressMonitor.STATE_BUSY) {
throw new ZipException("invalid operation - Zip4j is in busy state");
}
fileHeader.extractFile(zipModel, destPath, unzipParameters, newFileName, progressMonitor, runInThread);
}代码示例来源：origin: net.lingala.zip4j/zip4j
/**
* Removes the file provided in the input file header from the zip file.
* If zip file is a split zip file, then this method throws an exception as
* zip specification does not allow for updating split zip archives.
* @param fileHeader
* @throws ZipException
*/
public void removeFile(FileHeader fileHeader) throws ZipException {
if (fileHeader == null) {
throw new ZipException("file header is null, cannot remove file");
}
if (zipModel == null) {
if (Zip4jUtil.checkFileExists(file)) {
readZipInfo();
}
}
if (zipModel.isSplitArchive()) {
throw new ZipException("Zip file format does not allow updating split/spanned files");
}
ArchiveMaintainer archiveMaintainer = new ArchiveMaintainer();
archiveMaintainer.initProgressMonitorForRemoveOp(zipModel, fileHeader, progressMonitor);
archiveMaintainer.removeZipFile(zipModel, fileHeader, progressMonitor, runInThread);
}代码示例来源：origin: com.github.axet/zip4j
/**
* Removes the file provided in the input file header from the zip file.
* If zip file is a split zip file, then this method throws an exception as
* zip specification does not allow for updating split zip archives.
* @param fileHeader
* @throws ZipException
*/
public void removeFile(FileHeader fileHeader) throws ZipException {
if (fileHeader == null) {
throw new ZipException("file header is null, cannot remove file");
}
if (zipModel == null) {
if (Zip4jUtil.checkFileExists(file)) {
readZipInfo();
}
}
if (zipModel.isSplitArchive()) {
throw new ZipException("Zip file format does not allow updating split/spanned files");
}
ArchiveMaintainer archiveMaintainer = new ArchiveMaintainer();
archiveMaintainer.initProgressMonitorForRemoveOp(zipModel, fileHeader, progressMonitor);
archiveMaintainer.removeZipFile(zipModel, fileHeader, progressMonitor, runInThread);
}代码示例来源：origin: net.lingala.zip4j/zip4j
/**
* Sets comment for the Zip file
* @param comment
* @throws ZipException
*/
public void setComment(String comment) throws ZipException {
if (comment == null) {
throw new ZipException("input comment is null, cannot update zip file");
}
if (!Zip4jUtil.checkFileExists(file)) {
throw new ZipException("zip file does not exist, cannot set comment for zip file");
}
readZipInfo();
if (this.zipModel == null) {
throw new ZipException("zipModel is null, cannot update zip file");
}
if (zipModel.getEndCentralDirRecord() == null) {
throw new ZipException("end of central directory is null, cannot set comment");
}
ArchiveMaintainer archiveMaintainer = new ArchiveMaintainer();
archiveMaintainer.setComment(zipModel, comment);
}代码示例来源：origin: com.github.axet/zip4j
/**
* Sets comment for the Zip file
* @param comment
* @throws ZipException
*/
public void setComment(String comment) throws ZipException {
if (comment == null) {
throw new ZipException("input comment is null, cannot update zip file");
}
if (!Zip4jUtil.checkFileExists(file)) {
throw new ZipException("zip file does not exist, cannot set comment for zip file");
}
readZipInfo();
if (this.zipModel == null) {
throw new ZipException("zipModel is null, cannot update zip file");
}
if (zipModel.getEndCentralDirRecord() == null) {
throw new ZipException("end of central directory is null, cannot set comment");
}
ArchiveMaintainer archiveMaintainer = new ArchiveMaintainer();
archiveMaintainer.setComment(zipModel, comment);
}代码示例来源：origin: com.github.axet/zip4j
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